When importing a list or manually adding subscribers some email addresses might be rejected as "blacklisted"
Blacklisted email addresses are ones that we know don't exist because they have recently hard bounced in other email campaigns sent through our system or the address contains common typos such as extra.co.nz instead of xtra.co.nz
If addresses that you know to be valid are blacklisted then please report them to us by emailing [email protected] or opening a support ticket.
See also:
Understanding bounce types
